Enabling Client Offline Detection; Enabling Handling Of Option 82; Configuration Prerequisites; Enabling Option 82 Handling - HP 3600 v2 Series Configuration Manual

Step
3. Configure a timeout waiting
for ping responses.

Enabling client offline detection

With this feature enabled, the DHCP server considers a DHCP client goes offline when the ARP entry for
the client ages out. In addition, it removes the client's IP-to-MAC binding entry.
Removing an ARP entry manually does not remove the corresponding client's IP-to-MAC binding.
To enable offline detection:
Step
1. Enter system view.
2. Enter interface view.
3. Enable offline detection.

Enabling handling of Option 82

With Option 82 handling enabled, when the DHCP server receives a request with Option 82, it adds
Option 82 into the response.
If the server is configured to ignore Option 82, it will assign an IP address to the client without adding
Option 82 in the response message.

Configuration prerequisites

Before you enable Option 82 handling, complete the following tasks:
• Configure the DHCP server—Enable DHCP and configure the DHCP address pool.
Configure the relay agent or the device enabled with DHCP snooping—For more information, see
•
"Configuring DHCP relay

Enabling Option 82 handling

Step
1. Enter system view.
2. Enable the server to handle
Option 82.
Command
dhcp server ping timeout
milliseconds
Command
system-view
interface interface-type
interface-number
dhcp server client-detect enable
agent" and "Configuring DHCP
Command
system-view
dhcp server relay information
enable
51
Remarks
Optional.
500 ms by default.
The value 0 indicates that no ping
operation is performed.
Remarks
N/A
N/A
Disabled by default
snooping."
Remarks
N/A
Optional.
Enabled by default.